MTN bad service

So I've had a MTN contract mobile for 35 years and 3 weeks ago I went for my upgrade. Sorry Sir, but you are now on a Corporate package. .so what does that mean? You cannot upgrade as a Consumer Standard and your contract is R100pm more! So why am I on Corporate and not Standard....long story short..2hours on the call centre, confirmed email, I am now since 2 weeks ago on Consumer Std. So again I go for my upgrade today. Sorry Sir, you have a Corporate package...nobody could help!! Is there anybody out there from wonderful MTN that could help?